Clevis



Patented Mar. 24, 1925 i 1 EDWARD o.= 'rnAeun..or xansAscrTmivnssoum.

- 1 ,d vi 1 Application filed August 29, 1 924; Serial, 1 To. j7 '35,033,

To all whom. it"may concern:

Be it known that EDWARD C. TEAGUE, a citizen of the United States of America, re-

siding at Kansas City, in the county of J ackson and State of Missouri, has invented new and useful Improvements in Clevises,

of which the followingis a specification.

The purpose of the invention is to improve the construction of clevises so that the coupling pin, may be effectively latched inposition' on the yoke to complete ts recession and yet be susceptibleof mampulation to move it to open position, the device being applicable particularly to railroad use as a means of coupling the uncoupling rod to the pinjlift on the'coupler, thus replacing the conventional form of clev1s 1n which the coupling pin is retained in closed position by the application of a cotter P111011 the like which are frequently lost or sheared 011?, thus permitting thecoupling pin of the clevis to recede, I

With this general purpose inview, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawings, wherein: 1 I o Figure 1 is aside elevational view of a clevis embodying the invention.

Figure 2 is an edge View.

Figure '3 is a section on the line 3-8 of Figurel.

Figure 4 is a section on the line 44 of Figure 1. p 1

Figure 5 is a detail View of the coupling pin 4.

, u The yoke 1 is of the. usual form with enlargem'ents 2 at theextremities of the limbs of the yoke, the enlargements being transversely bored, as indicated at 3, for the re- 1 ception of the coupling pin 4, the bores or eyes 3 being adjacent the point of juncture of the enlargen'ients with the limbs to provide a large amount of stock behind the eyes to add strength to the yoke in the vicinity of tlieeyes. The coupling: pin is adapt ed for longitudinal movement in the eyes or bores 3 but is precluded from angular or turning movement, being provided with a longitudinal slot 5 intov which projects a pinGcarried by one of th-elimbs oi the yoke and trictionally held in a hole bored in the latter.

i 3 hen the coupling pin spans the limbs of theyoke, the head 7 of the pin abuts one of the enlargements on the outer face. The

withdrawn from latching position.

ing the same.

other of the enlargements is transversely slotted, as indicated at 8, to provide a recess for the head 9 of the latching pin 10, the latter projecting through a plate 11 seated in the bottom of'the recess and covering a cavity 12 in the enlargement. The latching pin is yieldingly impelled toward the couppin is in its closed position transversely spanning the limbs of the yoke.

, The head 8 of the latch pin is provided with opposite flats 18 for grasping the head between the'fingers so that the latching pin may be retracted and the coupling pin thus The coupling pin is beveled off on the extremities, as indicated at 19, to enable it when the 'iot-ched end is inserted in its respective k eye, to engage the latching p111 and raise the latter until the coupling pin reaches a position wherein the latching pin may be repressed into 1 the notch or seat 17. The transverse slot, as indicated at 8, at the end of one of the enlargements of the yoke includes walls on opposite sides ofthe head of the latching pinand the recess caused to be formed by the walls is open at right angles to the walls to permit ready access of the fingers of an operator whereby the head of the latching pin may be grasped for operat- The opposing walls act to protect the head, preventing contact of a foreign object with. the head of the pin which would tend to change the position of the head or cause it to disengage from the notch of the coupling pin or possibly break the head from the pin. It will be noted that the walls overlie the head sufiiciently to protect the sides and ends of the head of the latching pin and yet permit the fingers of an operator to engage with the head of the 111. 1 1 1 The invention having been described, what is claimed as new and useful 1s:

A clevis comprising a yoke of which the limbs are provided with eyes, a coupling pin slidably engaged in said eyes and adapted for position 111 spanning relation w1th said limbs, one of said limbs being provided on its end w1th opposed pro ecting walls fining an intervening recess open at its sides which are at right-angles to the walls, said limb having a cavity communicating with said recess, a plate fitted over and covering said cavity, and a latching pin mounted in said cavity below the plate and yieldingly impelled toward said coupling pin which is provided with a notch or seat for the latching 19111, said latching pm having a finger engaging head immediately beyond the plate and disposed between said projecting walls for engagement by the fingers of an operator for the purpose of retracting the latching pin.

- In testimony whereof he afiixes his signature.

EDWARD G. TEAGUE. 

